2308A-1DCGI8

Overview

The Renesas Electronics Corporation 2308A-1DCGI8 is a discontinued 3.3V PLL zero-delay clock multiplier belonging to the 2308 family. It operates within an input frequency range of 10MHz to 133MHz, providing a 1x multiplication factor. The device features eight LVCMOS outputs organized into two independent banks of four, allowing separate enable control for each bank. Key electrical specifications include output skew and cycle-to-cycle jitter both less than 200 ps. It utilizes an external feedback pin to synchronize outputs with the input clock and requires no external RC network. The component is housed in a 16-pin SOIC package.

Feature Summary

• Zero-delay phase alignment between incoming clock and output clock
• Two independent output banks (4 outputs per bank) with separate enable controls
• Low jitter performance: <200 ps cycle-to-cycle
• Output skew specification: <200 ps
• External feedback pin for flexible delay control

Applications

• High-speed clock distribution systems
• Clock multiplication applications requiring low skew
• System testing modes via direct input clock drive

Procurement Notes

The 2308A-1DCGI8 is officially listed as obsolete or discontinued by Renesas Electronics. Availability is limited to existing stock from third-party distributors. Verification of part authenticity and moisture sensitivity level (MSL) handling is critical due to the component's end-of-life status. No new production units are expected.

Selection Notes

Select this component only if the specific 1x multiplication ratio and 10-133MHz frequency range match the design requirements. Consider the 2308B series variants if industrial temperature ranges (-40°C to +85°C) are required, as the 2308A typically denotes commercial grade. Ensure the PCB layout supports the external PLL feedback loop configuration necessary for zero-delay operation.

Part Context

This part belongs to the IDT/Renesas 2308 family of high-speed PLL clock multipliers. It shares architectural similarities with the 2308B and 23S08 series but differs in specific multiplication options and package availability. The 'A' suffix typically indicates commercial temperature range, while 'DCGI8' specifies the SOIC-16 package with tape-and-reel packaging options.

Replacement Considerations

Direct replacements are unavailable due to obsolescence. Evaluate the 2308B-1DCI8 or 2308B-1HDCI8 for similar functionality with potentially wider temperature ranges. Verify pin compatibility and external feedback requirements before substituting.